vortex Talon HD vs Vortex Viper HD

[Bohuntr]

Was at BP yesterday and looked at the Vortex Talon HD. Liked them. They did not have Viper HD.
Am wondering what the didference in the two except fpr a hundred bucks?

[Lefty]

Actually compared the two yesterday morning in Edmonton in a light snow. We stepped out of the business and I couldn't tell a difference between the two hand holding them. Light gathering and reading of signs were equall. I didn't get the oportunity to put them on a solid rest and look at a distance and see if there was a difference that way. The owner said that he couldn't tell the difference either with his eyes and figured the talons were the better deal.